Advancements in photovoltaic cell and system technologies

Renewable energy undergoes a continuous development and improvement being driven by the growth in energy demand, the need to reduce pollution, and the increase in investment and policies at national and international levels. The photovoltaic solar energy lately became an important pillar for renewable energy to reach global and European targets in the share of renewable electricity. The first target for the energy generated by photovoltaic systems is 10% from the total European electricity production until 2020 [1], and until 2050, 60% from electricity generation has to be from photovoltaic solar energy and wind [2]..